Segment and Geographic Information (Tables)

12 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Schedule of sales and income (loss) from operations

The following table provides net sales and income from continuing operations for our operating segments and a reconciliation of our total income from continuing operations to income from continuing operations before income taxes (in thousands):

	Fiscal
	2017			2016			2015
Net sales:
OEM Laser Sources	$	1,143,620		$	722,517		$	655,854
Industrial Lasers & Systems	579,691			134,868			146,606
Total net sales	$	1,723,311		$	857,385		$	802,460
Income (loss) from continuing operations:
OEM Laser Sources	$	432,839		$	197,923		$	152,660
Industrial Lasers & Systems	(26,447		)	(13,869		)	(10,027		)
Corporate and other	(80,897		)	(56,440		)	(41,886		)
Total income from continuing operations	$	325,495		$	127,614		$	100,747
Total other expense, net	(23,440		)	(4,718		)	(1,179		)
Income from continuing operations before income taxes	$	302,055		$	122,896		$	99,568

Schedule of sales to unaffiliated customers

Sales to unaffiliated customers are as follows (in thousands):

	Fiscal
SALES	2017		2016		2015
United States	$	297,699	$	204,963	$	213,483
Foreign countries:
South Korea	628,369		187,908		195,589
China	162,316		63,050		57,548
Europe, other	162,162		55,351		53,027
Japan	154,985		193,418		135,674
Germany	145,835		71,427		75,474
Asia-Pacific, other	107,713		36,364		28,036
Rest of World	64,232		44,904		43,629
Total foreign countries sales	1,425,612		652,422		588,977
Total sales	$	1,723,311	$	857,385	$	802,460

Schedule of long-lived assets by geographic region

Long-lived assets, which include all non-current assets other than goodwill, intangibles, non-current restricted cash and deferred taxes, by geographic region, are as follows (in thousands):

	Fiscal year-end
LONG-LIVED ASSETS	2017		2016
United States	$	120,116	$	92,771
Foreign countries:
Germany	159,483		55,786
Europe, other	18,681		2,478
Asia-Pacific	24,517		11,981
Total foreign countries long-lived assets	202,681		70,245
Total long-lived assets	$	322,797	$	163,016